Adds SetCurrentScreen method to page indicator

Author: SteveAmor

src/displayapp/screens/Music.cpp

@@ -127,7 +127,7 @@ Music::Music(Pinetime::Controllers::MusicService& music) : musicService(music) {
   lv_obj_set_width(txtTrack, LV_HOR_RES - 12);
   lv_label_set_text_static(txtTrack, "");
 
-  page1Indicator.Create();
+  pageIndicator.Create();
 
   /** Init animation */
   imgDisc = lv_img_create(lv_scr_act(), nullptr);
@@ -255,11 +255,9 @@ bool Music::OnTouchEvent(Pinetime::Applications::TouchEvents event) {
     case TouchEvents::SwipeUp: {
       lv_obj_set_hidden(btnVolDown, false);
       lv_obj_set_hidden(btnVolUp, false);
-
       lv_obj_set_hidden(btnNext, true);
       lv_obj_set_hidden(btnPrev, true);
-      page1Indicator.Delete();
-      page2Indicator.Create();
+      pageIndicator.SetCurrentScreen(1);
       return true;
     }
     case TouchEvents::SwipeDown: {
@@ -268,8 +266,7 @@ bool Music::OnTouchEvent(Pinetime::Applications::TouchEvents event) {
         lv_obj_set_hidden(btnPrev, false);
         lv_obj_set_hidden(btnVolDown, true);
         lv_obj_set_hidden(btnVolUp, true);
-        page2Indicator.Delete();
-        page1Indicator.Create();
+        pageIndicator.SetCurrentScreen(0);
         return true;
       }
       return false;

src/displayapp/screens/Music.h

@@ -83,8 +83,7 @@ namespace Pinetime {
 
         lv_task_t* taskRefresh;
 
-        Widgets::PageIndicator page1Indicator = Widgets::PageIndicator(0, 2);
-        Widgets::PageIndicator page2Indicator = Widgets::PageIndicator(1, 2);
+        Widgets::PageIndicator pageIndicator = Widgets::PageIndicator(0, 2);
 
         /** Watchapp */
       };

src/displayapp/widgets/PageIndicator.cpp

@@ -35,3 +35,9 @@ void PageIndicator::Delete() {
   lv_obj_del(pageIndicatorBase);
   lv_obj_del(pageIndicator);
 }
+
+void PageIndicator::SetCurrentScreen(uint8_t nScreen) {
+  Delete();
+  nCurrentScreen = nScreen;
+  Create();
+}

src/displayapp/widgets/PageIndicator.h

@@ -9,6 +9,7 @@ namespace Pinetime {
         PageIndicator(uint8_t nCurrentScreen, uint8_t nScreens);
         void Create();
         void Delete();
+        void SetCurrentScreen(uint8_t nScreen);
 
       private:
         uint8_t nCurrentScreen;